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Earth - Unit 2: Geosphere (Part 1) Flashcards | StudBud
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Earth - Unit 2: Geosphere (Part 1)
Earth - Unit 2: Geosphere (Part 1)
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1
In what geologic period is the largest mass extinction in history?
permian
carboniferous
devonian
triassic
2
Rock formed by intense heat and pressure.
igneous rock
metamorphic rock
sedimentary rock
3
Which moves - the hot spot or the plate above it?
both
neither
plate
hot spot
4
What geologic era do we currently live in?
paleozoic
mesozoic
precambrian
cenozoic
5
A rock in outer space...
meteor
meteoroid
meteorite
6
Which seismic waves can NOT go through the core layer?
p-waves
s-waves
7
Molten rock ABOVE GROUND is called...
liquid rock
sediment
magma
lava
8
The half life is 5 days. How many days will it take for ⅛ of the substance to remain?
5 days
20 days
10 days
15 days
9
In what geologic period is the "Age of the Mammals"?
tertiary
carboniferous
cambrian
devonian
10
The rock going through the earth's atmosphere with a streak of light.
meteorite
meteor
meteoroid
11
The oldest oceanic crust is...
anywhere
deep within earth
at the spreading center
close to the continents
12
Rock formed by melting of rock and cooling.
metamorphic rock
igneous rock
sedimentary rock
13
Any rock in the rock cycle....
can become any other rock
stays the way it is
14
What is an example of a hot spot location?
Atlantic Ocean
Yellowstone
San Andreas
15
Northern lights are caused by...
reflection of city lights in the sky
chemicals in the atmosphere
solar wind getting trapped in earth's magnetic field
16
Plates that move away from each other.
divergent
transform
convergent
17
The faster the ridge is spreading, the _____ the ridge will be.
flatter
deeper
bigger
steeper
18
Go back and review relative age and geologic history. Be able to tell me which layers came first.
Ok, I will go review that.
Huh?
19
The space rock that lands on earth's surface.
meteor
meteorite
meteoroid
20
Creates mountains or volcanic chains.
convergent
transform
divergent
21
Rock formed by cementing sediments together.
igneous rock
sedimentary rock
metamorphic rock
22
EARTH'S MAGNETIC FIELD...
doesn't do anything
gives us gravity
keeps our atmosphere in
protects us from solar wind
23
Evidence for past events in Earth’s history are provided by:
History books
Rocks and fossils within them
Time lines
The clothes people wore
24
What geologic period do we currently live in?
cambrian
quaternary
silurian
carboniferous
25
The law of _________ says that layers are deposited on top of each other horizontally.
horizontality
inclusion
faunal succession
superposition
26
Broken down pieces of rock (like sand and gravel) are called...
igneous rock
metamorphic rock
sediment
magma
27
Which layer of the earth has the convection currents?
inner core
mantle
outer core
crust
28
Which is the oldest island in the chain?
Maui
Oahu
Kauai
Hawaii
29
The half life is…
The life of an organism is cut in half.
The amount of time it takes for the material to disappear completely.
The amount of time it takes for half of the material to decay.
30
Hot spots create….
volcanoes
mountains
earthquakes
deep trenches
31
The San Andreas Fault
convergent
transform
divergent
32
Creates rifts or ridges.
divergent
transform
convergent
33
Which layer of the earth is cracked and moves?
outer core
mantle
crust
inner core
34
Plates that are moving toward each other.
transform
convergent
divergent
35
How old is earth?
20 million years
8 million years
10 billion years
4.5 billion years
36
When looking at rock layers, where are the oldest rocks?
top
everywhere
bottom
middle
37
Plates that slide past one another.
convergent
divergent
transform
38
Which geologic law says that the oldest stuff is on the bottom?
faunal succession
superposition
horizontality
crosscutting
39
The youngest crust in the ocean is found...
close to the continents
anywhere
at the spreading center
40
Which layer of earth is solid and contains iron?
mantle
outer core
crust
inner core
41
What is one major difference between earth craters and moon craters?
Moon craters are eroded by wind and rain.
Earth craters are bigger. \
Moon craters last longer.
Earth craters last longer than moon craters.
42
In what geologic period is the "Age of the Fishes"?
tertiary
devonian
cambrian
carboniferous
43
In a convection current, hot magma _____, while cooler magma ______.
Sinks, pushes through the surface
Rises, pushes through the surface
sinks, rises
rises, sinks
44
How do scientists know that earth craters occurred if they can’t see the craters due to erosion?
They look at historical texts.
They can see the minerals and rock material miles away on the surface.
We don’t really know.
45
In what geologic period do our coal deposits form?
carboniferous
cambrian
tertiary
devonian
46
Molten rock UNDERGROUND is called...
magma
lava
liquid rock
sediment
